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Working in teams of four, learners build tetrahedral kites following specific instructions and using specific materials.

Through discussion and hands-on experimentation, learners examine the geological (ancient) carbon cycle.

Learners design and create musical instruments from common objects; their challenge is to create an instrument that can make three different tones.

In this ocean engineering activity, learners explore buoyancy and water displacement. Then, learners design models of deep sea divers that are neutrally buoyant.

In this design challenge activity, learners modify a cup so it can carry a marble down a zip line and also drop it onto a target.

In this engineering activity, learners build a device (an anemometer) to measure how fast the wind is blowing.

In this activity, learners mix milk, vinegar, baking soda, and water to create sticky glue. Use this activity to explain how engineers develop and evaluate new materials and products.

Learners build a simple electromagnet, then use this electromagnet to transform a yogurt container into a working speaker. They can connect their speaker to a radio and listen as it transmits sound.

Learners recreate the classic egg-drop experiment with an analogy to the Mars rover landing. The concept of terminal velocity will be introduced, and learners perform several velocity calculations.

Learners build simple catapults and use them to launch cotton balls.

Learners investigate weight by building a spring scale. They observe and record how it responds to objects with different masses.

Learners build devices from rubber bands to test for invisible air pollutants.

In this great hands-on activity, learners use patterns to make a teepee from newspaper that they sit inside.

In this activity, learners explore the concept of friction and how ball bearings reduce friction.

In this fun hands-on activity learners explore a simple machine: the lever. What happens to a load when you multiply the length of a lever? Find out here!

In this activity, learners build a kite out of paper, change it, and try to make it fly even better. With their new knowledge of kite making, students can then go on to create their own kite designs.

In this activity, learners model directed evolution by making paper fly. Learners construct and fly paper airplanes.